Foundation Drainage Solutions in Tulsa, OK

Downspout extensions, grading, French drains, and sump pumps. The work that keeps the clay from moving your house in the first place.

Most foundation problems in Tulsa start as water problems. Too much of it against the wall in a wet spring, too little in a dry August, and the smectite clay under your house swells and shrinks with every swing. Fix the water and a lot of foundations stop moving before they ever need a pier. Drainage work costs a fraction of structural repair, and we'd rather sell you a downspout extension this year than eight piers in three.

Tulsa water is its own problem

We get our rain in bursts. A spring storm line coming off the plains can drop 3 to 5 inches in an afternoon, and a 1,000 square foot section of roof sheds about 600 gallons for every inch that falls. Standard downspouts dump all of it within two feet of the foundation. Then the sun comes out, the clay bakes, and by July that same soil has pulled away from the footing and left a gap for the next storm to fill.

Crow Creek winds through Brookside and Maple Ridge, and the lots along it sit on soil that stays wet long after the yard two blocks over has dried out. Mingo Creek on the east side flooded badly enough in the 1980s that the city built a chain of detention ponds along it, and the neighborhoods around them still drain slow. The Arkansas River bottoms in west Tulsa, Sand Springs, and south toward Jenks and Bixby have a high water table that rises every time Keystone releases. The 2019 flood put river water into subdivisions along that stretch that hadn't seen it in decades, and we're still seeing the foundation fallout from soil that sat saturated for weeks.

Gutters and downspout extensions

The cheapest, highest return work on this page. Every downspout should discharge at least 6 feet from the foundation, 10 is better, and a buried 4 inch line that daylights 15 to 25 feet out into the yard is the fix that lasts. Flexible plastic extensions work until the mower hits them. Rigid PVC holds up. Buried PVC to a pop up emitter disappears into the lawn and lasts decades.

We also check the gutters. Sagging runs and leaking corner seams defeat the extension. For a typical Tulsa home, a full set of buried extensions runs $400 to $1,500 depending on how many downspouts and how far the lines go.

Surface grading

Soil should fall away from the house about 6 inches over the first 10 feet. Mulch settles. Sod builds thatch. Landscape edging goes in around a flower bed and turns into a dam that holds water against the brick. Five years after a house is built, the grade next to the wall is often flat or tipped the wrong way.

Regrading means bringing in screened topsoil, sloping it from the foundation outward, compacting it lightly, and seeding or sodding over it. We cut drainage gaps in bed edging or pull it out. Where a patio or driveway slopes toward the house, a channel drain across the low edge catches water before it reaches the wall. Grading work on an average lot runs $1,500 to $5,000, with the top end covering channel drains, concrete cutting, and hauling soil to a backyard with no gate access.

French drains

A French drain is a perforated pipe wrapped in fabric, bedded in gravel, sloped to carry subsurface water away from the footing before it gets there. They earn their keep on the north and east sides of a house where the soil stays saturated longest, on lots that slope toward the house, and along basement walls that take water in a storm.

They also fail in predictable ways. A trench cut in tight clay where water never reaches the pipe doesn't drain anything. A drain with nowhere to discharge just fills up. Gutters dumping straight onto the trench overwhelm it. We design the run with a real outlet, daylight at the back of the lot, a dry well, or a sump, and keep roof water out of it. Installed cost in the Tulsa metro runs $30 to $80 per linear foot, with the high end covering deep trenches, rock, and runs that need to pass under concrete.

Sump pumps

For the basements in Midtown and Maple Ridge, and for crawl spaces in older Brookside and Florence Park homes that take on water every spring, a sump is how the collected water leaves. A pit at the low point, a pump, and a discharge line. We size the pump to the inflow and the lift, and on any house that's flooded before we add a battery backup, because the power goes out in the same storms that fill the pit. Expect $1,200 to $3,500 installed depending on pit depth, pump capacity, and where the discharge can legally go.

Why drainage comes before piers, or with them

Piers fix the symptom. The house dropped, so you lift it and hold it on steel driven to bearing soil. Drainage addresses the cause, which is clay cycling between wet and dry under the footing. A house with piers and bad drainage keeps having cosmetic problems and often needs more piers down the road. Most pier warranties exclude damage from new water intrusion, so skipping drainage can void the coverage you paid for.

Three ways it usually plays out:

• Early signs, floor reads close to level. Hairline cracks, a door that sticks after a wet month. Drainage first, monitor for a year or two. Many homes never need anything else.
• Real settlement on one corner. More than an inch of drop, stair step cracks, a door that won't latch. Piers on the failed section and drainage to protect the rest. Same job, one crew, one permit.
• Wet crawl space or basement. Drainage and a sump are the repair, and the crawl space work happens once it's dry.

Drainage alone won't fix a corner that's already dropped an inch and a half, a horizontal crack that's bowing, or a crawl space with rotted sills. We'll tell you which situation you're in after the free inspection, with floor readings to back it up.

What drainage work costs in Tulsa

• Buried downspout extensions, whole house: $400 to $1,500
• French drain, installed: $30 to $80 per linear foot
• Surface grading and channel drains: $1,500 to $5,000
• Sump pump with pit and discharge: $1,200 to $3,500

Compare that to $5,500 to $12,000 for a standard pier job and the math makes itself. Homes in flat parts of Bixby and the river bottoms around Sand Springs tend to need more of this work than the ridge lots in Owasso. We'll walk the yard and tell you which of these you actually need.

FAQs

Related: Foundation repair | Crawl space repair | Drainage that prevents foundation damage | Why Tulsa soil moves